Why US-Mexican Tax Work Creates EA Demand

2026-07-09

Last reviewed: July 9, 2026. This article reflects current IRS rules and EA exam requirements as of this date.

The estimated 1,000,000-1,500,000 Americans in Mexico create a built-in client base for US tax professionals. Every one of them files annually. Most have tax situations more complex than the average domestic return.

What Makes Mexican Returns Different

1. Mexico has more Americans than any other foreign country. An estimated 1-1.5 million US citizens live in Mexico — more than anywhere else in the world except perhaps Canada. The sheer volume of filers makes Mexico the single largest US expat tax market. Every American in Mexico needs to file US taxes. Most of them aren't wealthy expats on corporate packages — they're retirees, remote workers, and dual citizens living ordinary lives with ordinary tax complexity. The demand is in volume, not premium pricing.

2. Fideicomisos are the Mexican real estate workaround — and a US reporting trap. The Mexican constitution restricts foreign ownership of land within 50km of the coast and 100km of the border. Americans buy Mexican property through a fideicomiso — a bank trust that holds the title. Under US law, the fideicomiso is a foreign trust. That means Form 3520 (Annual Return to Report Transactions with Foreign Trusts) and Form 3520-A (Annual Information Return of Foreign Trust with a US Owner) may apply. Most Americans who buy property in Mexico don't know this. The penalties for non-filing are severe — the greater of $10,000 or 35% of the gross reportable amount.

3. Mexican IVA (VAT) is 16% and not creditable against US tax. The Mexican value-added tax is an indirect tax. The US Foreign Tax Credit only applies to income taxes and taxes in lieu of income taxes. IVA doesn't qualify. An American resident in Mexico pays IVA on most purchases — the tax burden is real but provides no US tax benefit. The FEIE doesn't help because IVA isn't income.

4. SAT compliance for residents. Anyone living in Mexico for more than 183 days is a Mexican tax resident. The SAT (Servicio de Administración Tributaria) requires annual filings. Mexican-source income is taxed in Mexico. US-source income may be taxed in the US with a foreign tax credit for Mexican tax paid. The coordination between the two systems — IRS and SAT — requires understanding Mexican tax categories (salarios, arrendamiento, actividades empresariales, enajenación de bienes) and their US equivalents.

Why the EA Fits

The EA credential is federal — it works anywhere. No state board. No US office required. An EA in Mexico can serve the American expat community with US-side compliance while partnering with Mexican tax advisors for Mexican-side filing. The EA Part 1 exam covers filing status, the FEIE, foreign tax credits, and international reporting — exactly the content that matters for expat work.

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